Easy Step by Step Guide to Convert Single Drain Pipe into Double Sink #plumbing #reducerwashers

Are you wanting to install a double sink, but only have a single 1 1/4 inch drain pipe coming out of the wall? You could rip the drywall apart and create two drain pipes coming out of the wall for your two things, or you could use this trick using reducer washers.

[ajsemtb]

Great job! This is exactly what I was looking for! Thank you for sharing the solution. And who cares about code! Seriously! Just because there are reasons why you "shouldn't" doesn't mean 1. you can't, or 2. it won't work. It's just water people! It flows! Not everyone can afford a plumber or has the time to wreck out their walls to "do it right". My house built in the 70's is DEFINITELY not up to current codes, and yet, I take showers, flush the toilets and have sinks that drain just fine. And guess what? I now have 2 sinks that work just fine where I previously had 1. Thanks to this guy! :D

[blinkythrfosev]

Thanks for the detailed size and explanation and keeping it short, simple, and direct to the point. What size are the water lines?

[medifarahi]

Great work
did exactly the same
Do you get water build-up in the basin sometimes?

[matthewboyer]

Can you provide a “shopping list” for the fittings you put on the supply valves and the reducing washers used?

[GoNoGoDIY]

How did you put two water source connectors off one source?

[NathanThePrezPretlow]

Do they make a dual drain 1 1/4 kit for bathroom sinks.I cant find anything online.?

[yanivboussiba]

You could hand go all the way with 1.5 and use trap adapter 1.5 to 1.25

[ghislainehiers]

Laying a tee on its side for drain usage is automatic fail that is across America. Only time you can lay a tee on side is for venting. Those slinky drains are also bad.

[ds]

Nice idea but I guarantee you if you got this inspected it would fail.

[claypalmer]

Any issue yet? It’s been over a year yea?

[rw]

In Canada, that T is a building code fail. You must use two wyes "Y"

[ActinOut]

Pretty sure you needed a y and a studor valve in that drain plumbing.

[Mtuck]

What did you use for as a splitter for the hot and cold water line

[SaltySoul]

Is there a reason the P-traps are so low? It takes up all the space under the cabinet. 😬 My drain pipe is 2” and just as low. Do you think it’s possible to ‘T’ upward instead of straight out? Or am I being ridiculous? Thanks.

[meyou]

Please don't follow this method. The tee is supposed to be vertical. He switched pipe size from 1 1/4 to 1 1/2 and back 1 1/4, you shouldn't drain from bigger to smaller. Those accordion style p-traps are pretty much not code everywhere. Those ridges slow the flow of water and catch everything, they build up with grime and bacteria. 1 1/4 pipe is undersized for 2 vanities. You have the risk of siphoning the p-traps and allowing sewer gases into the home.

Look it probably works, for the time being. But you're just pushing the problem down the road. If anything ask on forums for opinions. Usually there are semi-retired plumbers that can provide better guidance. Just take some photos and ask.

[yehmustafa]

It's going to clog up over time. Guaranteed

[matthewpingitore]

they could monitor these video's, its wrong and shouldn't be done that way

[dennisnolan]

That could not be more code incorrect. Real example of how not to do it

[michaeldudas]

OMG! This is the worst job I have ever seen. In my State the inspector would laugh and slam the doors shut. This is a how to not to how to instructional video!